1. Producte acabatview
The SEAFLO 12V 5.5 GPM 60 PSI Water Diaphragm Pressure Pump (Model SFDP1-055-060-51) is a self-priming, positive displacement diaphragm pump designed for various liquid transfer applications. It features a 5-chamber design, a smart pressure switch for automatic operation, and an internal bypass for reduced cycling. This pump is capable of running dry without damage.

Image 1.1: The SEAFLO 12V 5.5 GPM 60 PSI Water Diaphragm Pressure Pump.
Característiques principals:
- Caudal: 5.5 Gallons Per Minute (20.0 LPM)
- Pressió: 60 PSI
- Capacitats de cebament: Elevació d'aspiració de 6 peus (1.8 m).
- Ports d'entrada/sortida: 1/2″-14 MNPT
- Elèctrica: 12V DC, 16 AWG leads with 2-Pin connector
- Diafragma: 5-chamber positive displacement design
- Protecció: Capable of being run dry, built-in thermal protection
- Reducció de soroll: Rubber base for anti-vibration and low noise operation
2. Informació de seguretat
Read all instructions carefully before installation and operation. Failure to follow these instructions may result in product damage, personal injury, or property damage.
- Always disconnect power before servicing the pump.
- Assegureu-vos el volum adequattage (12V DC) is supplied to the pump. Incorrect voltage pot causar danys.
- Do not pump flammable liquids. This pump is designed for water and non-flammable liquids only.
- Protegiu la bomba de les temperatures de congelació.
- Assegureu-vos que totes les connexions de fontaneria estiguin ben segudes per evitar fuites.
- Install a fuse or circuit breaker in the positive (+) lead as close to the power source as possible. Refer to specifications for appropriate amperage.
3. Contingut del paquet
Verifiqueu que tots els elements siguin presents al paquet:
- 1x SEAFLO 12V 5.5 GPM 60 PSI Water Diaphragm Pressure Pump
- 2x 1/2" Barbed Hose Adaptors
- 1x 50 Mesh Inlet Strainer
- 1x Set of Instructions (this manual)
4. Configuració i instal·lació
4.1 Muntatge
Mount the pump in a dry, well-ventilated area. The pump can be mounted horizontally or vertically. Use the integrated rubber feet to minimize vibration and noise. Ensure there is sufficient space around the pump for ventilation and access for maintenance.

Image 4.1: Rubber base for anti-vibration and standard mounting bracket dimensions.
4.2 Connexions de fontaneria
The pump has 1/2"-14 MNPT inlet and outlet ports. Use the provided 1/2" barbed hose adaptors for hose connections. Ensure all connections are tight and leak-free. It is recommended to install the 50 mesh inlet strainer on the inlet side to prevent debris from entering the pump.
- Entrada: Connect the water supply to the inlet port. The pump is self-priming up to 6 feet (1.8 m).
- Outlet: Connect the outlet port to your water system.
- Avoid kinks or sharp bends in hoses that could restrict flow.

Imatge 4.2: Part superior view of the pump, indicating inlet and outlet connections.
4.3 Connexions elèctriques
Connect the pump to a 12V DC power source. The pump comes with 16 AWG leads and a 2-pin connector.
- Connect the red wire to the positive (+) terminal of the 12V DC power source.
- Connect the black wire to the negative (-) terminal of the 12V DC power source.
- Install an appropriately sized fuse or circuit breaker (refer to specifications for max current draw) in the positive (+) lead, as close to the battery as possible.
5. Instruccions de funcionament
Once properly installed and connected, the pump operates automatically via its integrated smart pressure switch.
5.1 Initial Start-up and Priming
- Ensure all plumbing connections are secure and the inlet strainer is clean.
- Open a faucet or outlet in your water system.
- Apply 12V DC power to the pump. The pump will begin to run, drawing water and pushing air out of the system.
- Allow the pump to run until a steady, air-free flow of water is achieved from the open faucet.
- Close the faucet. The pump's pressure switch will detect the pressure buildup and automatically shut off.
5.2 Funcionament automàtic
The smart pressure switch provides automatic start and stop functionality. When a faucet is opened, the system pressure drops, and the pump automatically turns on. When the faucet is closed, the pressure rises, and the pump automatically turns off. This mimics the experience of home water usage.

Image 5.1: Smart Pressure Switch operation.
5.3 Internal Bypass Technology
The pump incorporates internal bypass technology to regulate pressure and reduce frequent on/off cycling. This helps maintain a steady water flow and extends the pump's lifespan by reducing stress on components.

Image 5.2: Internal Bypass for reduced cycling and smooth operation.
6. Manteniment
Un manteniment regular garanteix un rendiment òptim i una llarga vida útil de la bomba.
6.1 Inlet Strainer Cleaning
Periodically inspect and clean the 50 mesh inlet strainer to prevent debris from entering the pump and restricting flow. A clogged strainer can lead to reduced performance or pump damage.
- Desconnecteu l'alimentació de la bomba.
- Remove the strainer housing.
- Rinse the mesh screen under clean water to remove any accumulated debris.
- Reassemble the strainer, ensuring a tight seal.
6.2 Inspecció general
- Check all plumbing connections for leaks. Tighten as necessary.
- Inspect electrical wiring for any signs of wear or damage.
- Ensure the pump is securely mounted and the rubber feet are intact.
6.3 Hivernització
If the pump will be exposed to freezing temperatures, it must be winterized to prevent damage.
- Drain all water from the pump and plumbing system.
- Alternatively, flush the system with non-toxic RV antifreeze.
7. Solució De Problemes
Aquesta secció ofereix solucions a problemes comuns que podeu trobar.
| Problema | Causa possible | Solució |
|---|---|---|
| La bomba no s'encén | No power; Blown fuse/tripped breaker; Loose wiring; Faulty pressure switch | Check power supply; Replace fuse/reset breaker; Secure all electrical connections; Contact support if switch is faulty. |
| Low flow or no water output | Clogged inlet strainer; Air leak in suction line; Restricted inlet/outlet; Low voltage; Pump not primed | Clean inlet strainer; Check all suction line connections; Clear any obstructions; Verify 12V DC supply; Re-prime the pump. |
| Pump runs continuously or cycles rapidly | Water leak in system; Open faucet; Faulty pressure switch; Air in system | Check for leaks in plumbing; Ensure all faucets are closed; Contact support if switch is faulty; Bleed air from system by opening a faucet. |
| Excés de soroll/vibració | Loose mounting; Debris in pump head; Air in system | Secure pump mounting; Disconnect power and inspect pump head (if comfortable); Bleed air from system. |
8. Especificacions
Technical specifications for the SEAFLO 12V 5.5 GPM 60 PSI Water Diaphragm Pressure Pump (Model SFDP1-055-060-51).

Image 8.1: Detailed specifications for SEAFLO 55-Series pumps.
| Especificació | Valor |
|---|---|
| Número de model | SFDP1-055-060-51 |
| Voltage | 12 Volts DC |
| Caudal màxim | 5.5 Gallons Per Minute (20.8 LPM) |
| Shut-Off Pressure | 60 PSI (4.2 BAR) |
| Consum màxim de corrent | 17A |
| Capacitats d’elaboració | Elevació d'aspiració de 6 peus (1.8 m). |
| Ports d'entrada / sortida | 1/2″-14 MNPT |
| Temperatura màxima del líquid | 140 °C (60 °F) |
| Material (Diaphragm) | Santoprè |
| Material (Valves) | EPDM |
| Material de l'habitatge | Nylon / Polypropylene |
| Dimensions (aprox.) | 8.5" L x 5.75" W x 5.16" H (216mm x 146mm x 131mm) |

Image 8.2: Pump dimensions diagram.
9. Garantia i Suport
SEAFLO products are designed for reliability and durability. This product comes with a 4 any de garantia, garantint la tranquil·litat pel que fa a la seva qualitat i rendiment.
9.1 Informació de la garantia
The 4-year warranty covers defects in materials and workmanship under normal use and service. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by improper installation, misuse, neglect, freezing, or unauthorized modifications.
9.2 Atenció al client
For technical assistance, warranty claims, or any questions regarding your SEAFLO pump, please contact SEAFLO customer support. Refer to the official SEAFLO weblloc web o la documentació de la compra per obtenir les dades de contacte.